Home / 2,420.64-3,634.14-1,435.26

Finding the Fourth Proportional to 2,420.64, 3,634.14 and 1,435.26

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Solution

The fourth proportional to 2,420.64, 3,634.14 and 1,435.26 is: 2,154.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.64 : 3,634.14 = 1,435.26 : x
  2. Step 2: Convert to fraction form
    2,420.64/3,634.14 = 1,435.26/x
  3. Step 3: Cross multiply
    2,420.64x = 3,634.14 × 1,435.26
  4. Step 4: Simplify right side
    2,420.64x = 5,215,935.78
  5. Step 5: Solve for x
    x = 5,215,935.78/2,420.64
  6. Step 6: Final answer
    x = 2,154.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.